Car-axle-box lid.



:PATENTED AUG. 4, 1902;

H. I. MO AHAN. GAR AXLE BOX LID.

, APPLICATION II LED JUNE I l3, 19d7.

2 SHEETS-SHEET 1.

N0- 894,896. PATENTED AUG. 4, 1908.

" H. 'I. M'oMAHAN CAR, AXLE BOX' LID.

QAPPLIOATIQN FILED JUNE 13 1907.

2 sums-3113M z.

UNrrEn STATES ATENT oFrioE.

HARRIS I. MoMAHAN, OF ST. PAUL, MINNESOTA, ASSIGNOR TO ST. PAUL .I OURNAL BOX COMPANY, OF ST. PAUL, MINNESOTA.

CAR-AXLE-BOX LID.

Specification of Letters Patent.

Application filed June 13, 1907.

Patented Aug. 4, 1908.

Serial No. 378,746.

To all whom it may concern:

Be it known thatI, HARRIS I. MGMAHAN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Car-Axle-Box Lids and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and'use the same.

My invention has for its object to provide an improved car axle box lid, and to this end it consists of the novel devices and combinations of devices hereinafter described and de fined in the claims.

In the accompanying drawings which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a view in side elevation showing a caraxle box with my improved lid applied thereto. Fig. 2 is a front elevation of the parts shown in Fig. 1. Fig. 3 is a vertical section takenon the line a x of Fig. 2. Fig. 4 is a detail view in elevation, looking at the inner face ofthe lid and showing the same removed from the box. Fig. 5 is adetail view looking at the inner face of thelock bar, which cooperates with the lid. Fig. 6 is a detail view in side elevation of the lock bar shown in Fig. 5, with the intermediate portion of the lock bolt shown in section. Fig. 7 is a vertical section taken on the line a x of Fig. 2, but

on an enlarged scale. Fig. 8 is a horizontal section taken on-the line 00 of Fig. 2 and Fig. 9 is a detail view, on an enlarged scale, showin the so-calledlock bolt.

The ournal box 1 is provided at its front face with an annular lid seat 2, the rim of which is preferably rounded in cross section. A hinge bolt or shaft 3 is rigidly supported by heavy lugs 4 located on the upper portion of the box 1 and, as shown, cast integral therewith. The intermediate portion of this hinge bolt 3 is flattened as shownat 3 The lid 5 is provided on its inner face near its outer edge with an annular groove 6 that is adapted to closely fit the rounded face of the annular lid seat 2 of the box, and it is provided with a pair of heavy hinge lugs 7, the upper ends of which are pivotally mounted on the round portion of the hinge bolt 3 between the hinge lugs 4 of the box. The

perforations in the lugs 7 through which the hinge bolt 3 is passedare elongated or enlarged so as to loosely fit upon said bolt and to permit the lid to adapt itself to the annular lid seat 2 when pressed against the box. The so-called hinge lugs 7 are extended downward or outward across the outer face of the lid to form guardribs 7 that are beveled in opposite directions, as best shown in Fig. 8.

Located between the guard flanges 7 and the hinge lugs 7, and pivotally mounted at its upper end on the flattened or angular portion 3* of the non-rotary hinge bolt 3 is a socalled lock bar 8, the depending free end of which is adapted to be engaged with and disengaged from an up-turned lock rib or detent 9 formed on the lower outer portion of the axle box. In its upper end, the lock bar 8'is provided with an elongated seat 8 having an enlarged intermediate portion. When this bar 8 is moved with the enlarged intermediate portion of its seat 8 into line with the hinge bolt, it may be moved pivotally from the position shown by full lines into the position shown by dotted lines in Fig. 3, and vice versa. When it is turned down as shown by full lines in Fig. 3, the upper extremity of the seat'8 permits the free end of the bar to be dropped into engagement with the lock lug 9 of the box; and when the said leveris moved upward into the position shown by dotted lines and is then slid slightly endwise toward the hinge bolt, the inner extremity of the seat S engages the flattened portion 3 of said hinge bolt and thereby locks or secures the said arm in its elevated position, in which position it is adapted to support and hold the lid 5 in its open position, shown in Fig. 3. To adapt the arm 8 to hold the lid in its open position as just stated, it is provided with lateral projections or lugs 10 that engage under ribs 11 on the inner sides of the lid lugs 7, as best shown in Fig. 7.

At its intermediate portion, the lock bar 8 is provided with laterally spaced inwardly projecting. ears 12 through which extends a short shaft .13 having at one end an operating lever 14. Rigidly secured to the rock shaft 13 between the ears 12, is a cam or eccentric block 15 that is adapted to operate upon a centrally located bearing surface 5 of the lid 5. By reference to Fig. 2 it will be seen that the left hand guard flange 7 is cut away, as shown, at 7 to afford clearance for the cam operating lever 14.

When the lid is turned against the face of the box and the lock bar 8, at its lower end, is engaged with the lock lug 9, the said lid may be tightly clamped against the said lid 2 by a downward movement of the lever 14 into the position shown in Fig. 3, which lever movement forces the projecting portion of the cam 15 against the central portion of the lid. At this time the lock bar 8, of course, affords a base of reaction for said cam.

When the lever 14 is moved upward, the flattened or inner portion of the cam 15 is thrown adjacent to the lid, and the lid is then loosened and given suflicient play to permit the same and the lock bar to be moved upward far enough to carry the free end of the said lock bar above the lock lug 9, whereupon, as is evident, the said lock bar and lid may be moved into their uppermost positions shown by dotted lines in Fig. 3.

When the lid is locked to the box, the cam actuating lock lever 14; is forced into the notch or seat 7 and is then protected by the bar 8,and the beveled guard ribs 7 so that it can not be caught or broken by flying obj ects or obstructions along the line of travel. It will also be noted that the beveled guard flanges 7 a protect the lock bar 8 and together therewith form an approximately smooth exterior portion on the outer faceof the lid and box. The said lock lever 14may be easily reached and pulled outward by the ordinary packing hook which is always carried by persons charged with the inspection and care of car axle boxes.

What I claim is:

1. The combination with an axle box, of a lid and a lock bar independently hinged to said box, the said lock bar having interlocking engagement with the box at its free end, and a lock device arranged to work between the intermediate portions of said'lock bar and lid to press the latter against the seat on the box, substantially as described.

2. The combination with an axle box and a lid hinged thereto, of a lock bar hinged to said box and having interlocking engagement therewith at its free end, and a lever actuated cam or eccentric mounted on the intermediate portion of said lockbar and engageable with the intermediate portion of said lid to press the same against its seat on the box, and which cam is adapted to be thrown into an operative position beyond its dead center or point of greatest pressure 011 the lid, whereby it will remain set in its locked position substantially as described.

8. The combination with a car axle box,

anczaghinge both secured thereto of a lid and a lock bar pivoted to said. hinge bolt said lid having a marginal groove that fits a projecting seat on the box, and said lock bar having interlocking engagement with said box at its free end when lowered and having interlocking engagement at its other end with the sup porting hinge bolt when raised, a lock device reacting against the intermediate portions of said lock bar and lid to press the latter against its seat on the box when said lid and bar are lowered, and a connection between said lock bar and lid whereby said bar will support the said lid independent of said lock device in an open position, substantially as described.

4. The combination with an axle box' 1 having an annular lid seat 2 and hinge lugs 4, of a hinge bolt 3 fixed to said lugs 4 and having a flattened intermediate portion 3, a lid 5 having lugs 7 loosely pivoted on said hinge bolt and having a groove 6 engageable with said lid seat 2, a lock bar 8 having an elongated seat 8'" adapting it to move pivotally on and to be interlocked with the flattened portion 3 of said hinge bolt, and having interlocking engagement with the box at its free end when lowered, a lever actuated cam. or eccentric on the intermediate portion of said bar bearing on the intermediate )ortion of said lid to press the same against its seat on the box, and a connection between said bar and lid for causing the former to support the latter in a raised position, substantially as described.

5. The combination with an axle box, of a lock bar and a lid independently pivoted to the box, said lock bar having interlocking engagement with the box at its free end, and the said lid having a groove in which the main body portion of said bar lies approximately flush, and a lock device inter )osed between the intermediate portions of said lock bar and lid for yieldingly pressing the latter against its seat on the box, substantially as described.

6. The combination with an axle box, of a lock bar and lid independently pivoted thereto, a lock device interposed between the intermediate portions of said lock bar and lid for pressing the latter. against its seat on the box, the said lock bar having a connection to said lid which is independent of said lock device and operates to hold the lid in a raised position when said lock bar is raised, substantially as described.

In testimony whereof I allix my signature Witnesses:

H. D. KILGORE, M. Hone. 

